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                [TOC] ## .prop() 不同于.attr(),用于對 checked 或 disabled 或 selected 等屬性的添加操作 語法 ``` .prop( propertyName ) .prop( propertyName, value ) .prop( propertyName, boolean ) .prop( propertyName, function(index, oldPropertyValue) ) ``` ### 實例 ### 判斷是否存在一個元素 ``` if ( $(elem).prop("checked") ) // 等價于 $(elem).is(":checked") ``` #### 添加一個屬性 ``` //方式一 $("input[type='checkbox']").prop("checked","checked") // 方式二 $("input[type='checkbox']").prop("checked",true) ``` #### 添加多個屬性 ``` $("input[type=checkbox]").prop({ disabled:true, checked:true, }) ``` ## .removeProp() 語法 ``` $("input[type=checkbox]").removeProp("checked") ```
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